Jan Chyba (AirsoftPro.cz) has sent details of their upgrade parts for the A&K SVD rifle each made to ensure you can tweak your SVD to your own taste:
Currently we offer 5 reinforced parts for A&K SVD:
Steel and very durable piston catch:
http://airsoftpro.cz/eshop/product_info.php?products_id=821Progressive spring from M100 to M170:
http://airsoftpro.cz/eshop/advanced_search_result.php?keywords=MS&sort=3a&manufacturers_id=8Reinforced piston with bearing piston head:
http://airsoftpro.cz/eshop/product_info.php?products_id=1473Center ring which support stronger springs:
http://airsoftpro.cz/eshop/product_info.php?products_id=1548…and brand new CNC HopUp chamber:
http://airsoftpro.cz/eshop/product_info.php?products_id=1814This chamber is very hot item with good sales. You can find more photos and details on the webpages.
Thank you very much. Jan Chyba (AirsoftPro.cz)